I personally don't believe in auras or anything like that. However, I do believe that people give off uncountable subtle hints about who they are, and that this is interpreted as "energy" by some. It could be posture, clothing, facial expressions, tone of voice, the way people walk, even the way they smell (people give off chemical signals just like all mammals, we are just less consciously aware of them). All of this adds up to give what is likely a moderately accurate model of what a person is like, both in general and at the moment. Individuals that can pick this up may just be very in tune with their senses where people are concerned. At least that's my rational work-around until science discovers aural emissions
